Large format doesn't have to be horribly expensive. It isn't pleasant on your wallet if you plan to shoot dozens of frames every week, but it isn't a massive investment if you keep things simple with the plan to take it out a few times a year for special specific shots that benefit from the format: Cheap 4x5 camera, inexpensive lens, 3-6 film holders, a few boxes of film, and a tank to develop them in. Is a $1000+ camera, and a half dozen $1000+ lenses on their own boards, and dozens of film holders loaded and ready to go every weekend a nice thing to have? Sure. But a $200 camera, a $200-300 lens, and under $100 in holders is enough for you to get started with and explore.
Having large format gear means you have a tool in your kit to work with, but it doesn't mean every single photo-outing brings it and its expensive film feeding habit along too. It sits happily on a shelf or in a cupboard while the cheaper habit is fed with smaller format cameras.
Decide what kind of angle of view you like on your lenses, do you tend to reach for a wide, normal, or tight shot, and buy a lens to match. Find a camera that fits your budget. Whether or not you have a decently solid tripod and a good head for it already does impact your investment, but it makes a good excuse to finally get one if you don't have one yet.